So it did spark a question in my mind: Since you’ve developed this tool to root out gerrymandering, have you actually determined what districts are in fact gerrymandered? Is there a list available somewhere?

The tool identifies states that are, on a whole, gerrymandered to give political advantage. At that point, one just has to examine the district-by-district vote totals to see which districts have narrow victories, favoring the redistricting party if they did it right; and large victories, in districts where they packed their opponents. It will be obvious. Go run the code at gerrymander.princeton.edu and you will see.